Topband: How can I design 160 m 1/2 wave long wire?

[TA9J Ismail Cakmak]

How can I design 160 m 1/2 wave long wire? Does it require balun? I'd be ver 
grateful if anyone would help me

TA9J

ISMAIL CAKMAK
KARS(LN10MN)-TURKEY

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